3 years ago

Which phrase is represented by the expression 5x36+9

Mathematics

1 answer:

daser333 [38]3 years ago

3 0

The answer A because it follows the order of operations.

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Một miếng đất hình chữ nhật có chu vi 80 mét.Nếu kéo dài thêm 8 mét nữa thì diện tích tăng thêm là 72 mét vuông.Tính chiều dài v

Nataliya [291]

Answer:

Step-by-step explanation:

(D+R) = 80:2 = 40

D = 40-R

(D+8) * R = 72X

Thay D=40-R

(40-R+8)*R = 72X

R=1.55, D=38.45

7 0

3 years ago

Please show work, thanks

Brut [27]

Answer:

4) 1400 $in^3$

5) 304 $\Pi$ or 954.56 $yd^3$

6) 315 $ft^2$

Step-by-step explanation:

$4)$

$V = \frac{lwh}{3} = \frac{20*20*10.5}{3} = \frac{4200}{3} = 1400$

$5)$

$A = \Pi(\frac{D}{2})^2 = \Pi(\frac{8}{2})^2 = \Pi*4^2 = 16\Pi$

$V = A * h = 16\Pi * 19 = 304\Pi = 304 * 3.14 = 954.56$

$6)$

$h^2 = 8^2 + 8^2 => h^2 = 64 + 64 = 128 => h =\sqrt{128}$

$A_1 = 2(\frac{8*\sqrt{128}}{2}) = 8*\sqrt{128} = 32 = 90.5$

$A_2 = 2(14 * 8) = 2*112 = 224$

$A = A_1 + A_2 = 91 + 224 = 315$

6 0

4 years ago

If the circumference is 72 pi inches, what's the radius?

bekas [8.4K]

The circumference is pi times the diameter of the circle. The radius is half of the diameter. In this case, the radius is then 36.

3 0

3 years ago

How do you do this?

erastova [34]

x is the number you thinkc

that's it

x/2 -4

7 0

3 years ago

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A homeowner will put fencing around a rectangular garden that is 10 ft by 12 ft. How many linear feet of fence does he need?

dlinn [17]

Answer:

44 feet

Step-by-step explanation:

P = 10 + 12 + 10 + 12

P = 10(2) + 12(2)

P = 20 + 24

P = 44

6 0

3 years ago

Read 2 more answers